Miri is an Assistant for GigaSpaces R&D developers. Basically an IntelliJ IDEA plugin which helps with common tasks.
IntelliJ plugins are built using Gradle. Use the following command to build the plugin:
gradlew buildPlugin
The build creates a zip file under build/distributions.
To install the plugin, simply unzip it in the plugins folder under IntelliJ (e.g. IntelliJ IDEA Community Edition 2018.1.1/plugins/miri or .IdeaIC2019.3/config/plugins), and restart IntelliJ.